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Folia Medica 63(3): 309-314
doi:
10.3897/folmed.63.e54750
Received:
26 May 2020 | Approved:
15 Jun 2020 | Published:
30 Jun 2021
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Authors
Clinic of Neurosurgery, Sv Georgi University Hospital, Plovdiv, Bulgaria
Department of Neurosurgery, Faculty of Medicine, Medical University of Plovdiv, Plovdiv, Bulgaria
Department of General and Clinical Pathology, Faculty of Medicine, Medical University of Plovdiv, Plovdiv, Bulgaria
Ivo Kehayov 
- Corresponding author
- Corresponding author
Department of Neurosurgery, Faculty of Medicine, Medical University of Plovdiv, Plovdiv, Bulgaria
Conflict of interest
The authors have declared that no competing interests exist.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.